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Moisture in Natural Gas Analyzer - Michell OptiPEAK TDL600

Updated:2025-03-13

Brand: PST/Michell
Model: OptiPEAK TDL600
Description: The next generation TDLAS Analyzer for automatic online measurement of moisture in variable compositions of natural gas and biomethane. The OptiPEAK TDL600 Tuneable Diode Laser Analyzer employs the la
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Product Details

Moisture in Natural Gas Analyzer - Michell OptiPEAK TDL600 Description：

Product Manual Datasheet

Fast and Precise Moisture Measurement in Natural Gas

Features

D-MET system: Factory-ready for varying gas compositions. For example, after stream blending or injection of shale gas or biomethane to a network.

Operating range down to 1 ppmV

Sour gas compatible

Simple installation and setup

Lowest maintenance

ATEX, IECEx, UKCA and cQPSus certified

Integrated sample handling

Proven Michell Instruments quality: 40 years' expertise in moisture measurement built into the design

The next generation TDLAS Analyzer for automatic online measurement of moisture in variable compositions of natural gas and biomethane. The OptiPEAK TDL600 Tuneable Diode Laser Analyzer employs the latest techniques in laser absorption spectroscopy and signal processing power to offer a robust high performance analyzer, designed specifically for the measurement of moisture in natural gas. This non-contact technology requires minimal maintenance, even in demanding applications such as changing methane concentrations or sour gas. The analyzer is fully hazardous area certified and delivers class-leading measurement performance, stability and detection sensitivity.

Specification

Measuring Technique	Tunable Diode Laser Spectroscopy (TDLAS)
Measurement Range	1 ppm_V...1000ppm_V
Accuracy *	± 1 ppm_V or ±3 % of reading, whichever is greater
Repeatability *	±0.5 ppm_V or ±1.5 % of reading, whichever is greater
Limit of Detection	1ppm_V
Available Units	ppm_V, lb/MMSCF, mg/Nm³, dew point °C or °F (ISO18453 or IGT#8)
Response Speed	Display update 2...3s
Environmental Conditions	Indoor version: +10 °C...+45 °C Outdoor version:* –20 °C...+45 °C Outdoor with cooling option:* –20 °C...+55 °C
Electrical Specifications
Supply Voltage	110 V AC or 230 V AC 50/60Hz
Power Requirements	Indoor version: 80W Outdoor version: 180W
Analog Signals	Input: 2 x 4...20 mA user configurable Output: 3 x 4...20 mA,3 alarms 250 V AC, 3A (volt-free contacts)
Digital Communications	RS485 Modbus RTU
Data Logging	Logs all process variables with a user selectable sample period in the range 10s...1 day
Local Interface	4.3” color LCD with touch pad operation
Electrical Connections	3 x M20 entries for cable glands
Calibration
Factory Method	3-point, traceable to NPL and NIST
Recommended Calibration	None required, dependant on user or quality system requirements
Physical Specifications
Sample Flow Rate	0.5 Nl/min cell sample 1...5 Nl/min sample filter by-pass
Inlet Pressure	Maximum 100 barg (1450 psig)
Outlet Pressure	Cell vent 0.7...1.4 bara (10...20.3 psia), Filter by-pass maximum 3 barg
Enclosure Type/ Packaging	Aluminium alloy, explosion proof, polyester coated, IP66, NEMA4
Gas Connections	1/4” NPT(F)
Weight	40...75 kg (88...165 lbs) (approximate – depending on configuration)
Sample System Enclosure	304L or 316L stainless steel
Hazardous Area
ATEX/UKCA: IECEx: cQPSus:	II 2 G Ex d ib op is IIC T5 Gb Ex db ib op is IIC T5 Gb, Tamb –20 °C...+60 °C Class I, Division 1, Groups A, B, C, D, T5, Tamb –20 °C...+60 °C
*If installed outside, the analyzer must be shaded from direct sunlight to prevent heating effects through sun radiation